Molding-machine.



M. K. WEIGEL.

HOLDING MACHINE.

APPmoATIoN FILED MAY ze. 190s-,

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` MoLDING MACHINE.

APPLICATION FILED MAY 29, 1908.

l Patented Ma. 3o, 1909.

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UNITED sfrAfr-ns PATENT OFFICE.

MAX KARL W'EIGEL, OF DAVENPORT, IOWA, ASSIGNOR TO KILLING MOLDINGMACHINE CO.,

. OF DAVENPORT, IOWA.

MOLDING-MACHINE.

Noi 916,511.

Specification. of Letters Patent.

Patented March 30, 1909.

Application ined may 29, 190e. semi No. 435,765.

Machine, of which the following is a speciiication.

This invention relates to molding machines and has for its object toprovide a strong, durable and thoroughly ellicient inachine of thischaracter in which the flask is Withdrawn from the pattern. anddeposited on the ground thereby to prevent .breakage of, or injury to,the mold. A further object of the invention is to pro vide a moldingmachine includin a truck having a carrier secured thereto an mounted forrotation -in a horizontal plane, said car rierbeing provided with areversible table Which"forms a support for the liask.

A further object is to provide improved means'for revolving tlie table,means for locking the table in different positions of --,adjustment, andmeans for' lowering the laskor moldy after the table has been reversed.

A still ftirther object of the invention is. .generally to 'improve thisclass of machines so as to lncrease their utility, durability andefficiency.

#Further objects and advantages will ap pear in the followingdescription, it being understood that various changes in form,proportionsv and minor details of construction `may Abe resorted toWithin the scope of the appended claims.

In t e accompanying drawings forming a part of this specification:Figure 1 is a front elevation of a.molding machine constructed inaccordance with In invention. Fig. 2` is a top lan view of t e same.Fig. 3 is a side e evation, the flask supporting table being shown indotted lines in normal posi tion and in full lines in osition to be re--versed. Fig. 4 is a simi ar View showing-j the manner of lowering theflask. Fig. 5' is .a detail sectional view of the o'ear-ing for.

effecting the lowering of the las Similar numerals of reference indicatecorresponding parts iii-,all of the figures of the drawings.

The improved molding machine forming 'the subject matter of the resentinvention includes a Wheeled truck, aving asubstan Y tially U shapedsupporting frame 5 the arms of which are provided with bearings 6 forthe traction wheels 7. Extending vertically from the closed end oi" theframe 5 is a stud 8 upon which is mounted for rotation a transverse bar9, said stud being provided with an annular groove 10 in which is seated'a screw or similar fastening device 1]. for

preventing accidental displacement ol the bar 9, while at the same timepermitting the bar to rotate in a horizontal plane on the stud erbearing S.

' Keyed or otherwise rigidly secured to the opposite ends of therevolving bar 9 is a pair of arms 12 preferably arranged 'at an angle tothe supportingy frame 5 and having theirA free ends connected by ahorizontally disposed shaft 13. The arms l2 and shaft 13 togetherconstitute a carrier upon which is mounted a reversible flask carr ingtable 14. i

of horizontally disposed arms raving their intermediate portionsprovided With alined openings for the reception of the shafiJ I3 andtheir op ositel ends formed with in- Wardl exten ing lingers 15 t0 whichmay be bolte or otherwise rigidly secured the pattern plate or board 16.

Secured to or formed integral with the arms oi' the table 14 are casingsor housings 17 in Which are journaled stub shafts 18 carrying .a pairoi' pinions 19 Aand 20, the large pinions 19 being arranged to mesh withcorresponding gears or pinions 21 secured' to an mounted for rotationwith the shalt 13.

The casinos or housings 17 are with vertically alined openings in whichare slidably mounted suitable racks 22, the teeth of which mesh with theteeth on the adjacent pinions 20. One end of each rack 23 having pinsexten ing inwardly there from and on which are Journaled suitablerollers 24, which latter engage the drag board 25 of the flaskA andserve to clam the latter in engagement with the body o the flask andthus prevent-separation of the parts when the table 14 is reversedpreparatory to lowering the mold. V

Secured to the arms 12 of the carrier are segmental lates 26 which formguides for a locking bo t 27.

The locking bolt 27 is mounted in. a casing or cylinder 28 secured toone of the arms 12 and is provided with an operating handle 29 The flaskcarrying table com rises alpail I provided is provided with an an ularlydisposed arm i by means of which the bolt 27 may be retracted againstthe tension of the spring 30 when it is desired to release the flaskvsupporting table preparatory to revolving or re-V versing the same.

Secured to one end of the shaft 13 is a hand Wheel 31 by means ofwhich-the shaft 13 may be revolved to eect the reversal of the flasksupporting table and also to actuate the racks 22 to deposit the flaskor mold on the ground.

lIn operation the carrier 12 is moved to the dotted line position shownin Fig. 3 of the drawings and the flask 25 placed in position on thepattern board 16 after which the wheel 31 isl partly rotated whichcauses the pinion 21 to engage the pinion 19 and thus move the 'rollers24 in engagement with the flask thereby to securely clamp the ask inposition on the table. The operator then grasps the wheel 3'1 androtates the carrier in a horizontal plane to the full line positionshown in Fig.l 3 of the drawings, after which the lever 29 is actuatedto release the locking bolt 27 and the wheel 31 moved in the directionof the arrow which reverses the position of the table and moves theflask to a position directly above the open end of the supporting frame5, the clampingmembers serving to prevent accidental displacement of theflask when reversing the position of the supporting table. The handwheel 31 is then rotated in the opposite direction which causes theteeth on the pinions to engage the teeth on the racks 22 andthus lowerthe flask or mold to the position shown in dotted lines in-Fig. 4 of thedrawings, the pattern plate or board 16 being held relatively stationaryduring the lowering operation.

table is reversed the locking member or bolt 27 will ride over thesegmental plate 26 until the reversal of the table is effected, in whichevent the spring() will force the bolt into one of the recesses 32 andthus prevent rotation or oscillation of the sup orting table when theflask or mold is lowered. By moving the truck rearwardly the rollers 24will slide over the drag board and thus leave the flask or mold on theground. After the mold has been deposited on the round the operatorgrasps the wheel 31 an( turns the carrier in a horizontal plane to thedotted line position -shown in Fig. 1 of the draw- It will here be notedthat when the supporting ings, the 'lever 29 being then actuated tovHaving thus 4described'the invention what is claimed is:

1. A molding machine includinga truck, a carrier mounted on the truck, aflask supporting table, a'pattern movable with the table, and meansmounted on the carrier for lowerinfT the flask while the pattern remainsrelatively stationary.

2. Amoldingmachine including a truck, a carrier mounted on the truck, areversible flask supporting table, a pattern movable with the table, andmeans mounted on the carrier for lowering the flask while the patternremains relatively stationary. 3. A molding machine including a frame, acarrier mounted for rotation in a horizontal plane on the frame,a,reversible flask supporting table, a pattern movable with the 'carriermounted for rotation in a horizontal plane on the frame, areversibleflask supporting table, a pattern mpvable with the table,means for preventing accidental displacement of the flaskwhen reversingthe table, and means for lowering the flask while the pattern remainsrelatively stationary.

5. A molding machine including a truck, a carrier mounted for Arotationon the truck, a reversible flask supporting table mounted on thecarrier, means for locking the table in normal and reversed positions,andv means for lowering the flask when the table is in reversedposition. y

6. A molding machine including a truck, a carrier, a reversible flasksupporting table mounted for rotation on the carrier, means for clampingthe flask on the table, and means for lowering the flask when thetableis in reversed position.

7. A molding machine including a truck, a carrier mounted on the truck,a shaft journaled in the carrier, a reversible flask supporting tablemounted on the shaft, clamping devices adapted to engage the flask andprevent accidental displacement of the same d uring the reversal of thetable, and means carried by the shaft and cooperating with-A theclamping devices for lowering the flask when the shaft is rotated.

8. A molding machine includinga truck, a carrier pivotal y mounted forrotation in a horizontal plane on the truck, a shaft journaled in thecarrier, a reversible flask supporting table mounted -on the shaft,means for locking the table in normal and reverse positions, and meansactuated by the shaft for lowering the flask when the table is inreversed position.

9. A molding machine includinff a truck,'a carrier mounted for rotationon the truck, a shaft journaled in the carrier 'and provided with gears,a flask supporting table mounted on the shaft, casings secured to thetable, gears journaled iny l'etheleasings andA meshing with the teethof'the gears on the shaft, pinions mounted-for rotation with the gearsin the casing, yraoks-slidabl mounted within the casing and engaging tve teeth of the adjacent pin1ons, clampin lglevices carried by the racksand adapte to'bear'against the flask; andahand Wheel for rotating theshaft.

10. A molding machine including a truck, a carrier mounted for rotationon the truck, a

shaft j ournaled in the casing and provided with spaced gears, a ilasksupporting table mounted on t e shaft, a pattern plate secured to thetable, casings carried by the table,

racks mounted for vertical movementwithin the casing and provided withmeans for engagement ythe flask, gears mounted for rotation inthe'misings and provided with pinionsadapted-to mesh with the teeth onthe adjacentracks; l v

'11. A molding' machine including a truck .having a substantially Ushaped frame, a

carrier mounted for rotation in a horizontal plane on the closed end ofsaid frameLa reversible flask supporting table mounted on the carrier,apattern carried by the table,

fand means for lowering the flask to a position -On the ground at theopen end of the support- .ing frame while the patternremainsijrelw.

tively stationary.

l 12. A molding machine including @truckhaving a substantially U shapedsu' porting frame, a stud extending vertically rom the closed end of'the frame, a horizontal bar mounted for rotation on the stud andprovided with oppositel disposedl arms disposedA at an angle to t eframe of the truck,

a shaft 'ournaled in the ends of said arms; `ai.

reversib e ilask supporting table mounted on the shaft, means forlocking the table against movement, a pattern secured to and movablewith the table, and means -for lovering the flask Without eifectin themovement ofthe pattern when the tab e is in lreversed position. e Y

. In testirnoriyithat I claim the foregoing as

